1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48e7c1e2ebafcdf0f74fa9682683977f05b96506cb48a738f2f8aa63c716987. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a993f5c6-3982-4c2e-ae33-2afa77b724bf.json and https://artists.proofprofile.net/proofs/artist/a993f5c6-3982-4c2e-ae33-2afa77b724bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a192b20d68ecec75969625a26d71668bb391ae935eb10b098fe566b02ae045d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:17:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R1928086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9123564a139d37c57a60ab1707c0134323fee8e280090f2d4802f9a66c86c71f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R1928088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0fc5592e4928402266c6655dd7274d27c822aaed8313b5306779bff6371b2c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2204544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892ba8fa415cdfb53686af47a5af83a6c4b512bf047b76617a34f3948125fcf8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2204548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ef0f7e44d4131d9c914a9beb753da318f832c7766dce97f861c8e28a7608da. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:43:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2204558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243a78aa3d360122e3335579125ee6d44e63ab4bd51c84dabd7ec7011699a4c3. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T15:41:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2204560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd464924db175ba3fb43ac6800e3a1a9e54367e09e4d27c7f9827a883c9a76f37. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2208469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210b7595b5ef1429dc37f2c9db103f8c2153aa269a91b331ad9dc56c6d9e951d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2208475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2850aee423fe68fa132beb8788477a70f55e843e2b693bd9a2b78acccacbc8. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2208489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb648c7d7c7b460c01efba245db326ff1cb835f4df8dce66df953740a7d123c8e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2208497.
Jaze - A Sangre - Jaze Vs Skill 2020 - Live
Minutazos Vol 10 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8df3c1dc462550deb501678e1251952f0699ea5c968de81f3bb96ad60235af5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2332849.
Jaze - A Sangre - Jaze Vs Strike 2020 - Live
Minutazos Vol 5 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc870eb1303906fdeb899e3d7c450909f707581cae89a3ee4b2dd8e6d50cdf5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2329113.
Minutazos Vol 6 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3441d0991d7186d7392939625dc0b0381d40ca556f0427850ac509476cd5fef. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2330047.
Jaze - A Sangre - Jaze Vs Nekroos 2020 - Live
Minutazos Vol 12 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac045bbd45d9a564517e3f3a0b1e4431581a1b5f0280d98f3e31dfb49a22af99. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2334706.
Kian Vs Jaze - FMS PERU T2 2021-2022 Jornada 2 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e9d76f1d300f8046b6c1a7422c127d5c3b16be24831e74d027357f9d7a076b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2156024.
Skill Vs Nekroos - FMS PERU T2 2021-2022 Jornada 5 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edb1a2be89e6b5d08afada0f5914de0b5752c73d07340b4fed4425118f9ae0b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2225932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f2360e82a846c130ca935eb07f0676f819aaf2464ad3c38d8c54aed6ac5003. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2225933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1489f9e0b67b90eb7e47e865c91198b0fe0f825d087df33c75394967ff30f79d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USP6L2301552.
New Era - A Sangre - New Era Vs Stick 2020 - Live
Minutazos Vol 8 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60b3d503359828847b89461e3d345395cb23c2fe87ec4bdd6a412fa199b8e19. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2330638.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Sangre 1 Skill - Filosofo Vs Skill - Live
Filosofo Vs Skill - FMS PERU T3 2023 Jornada 1 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa057df8a50eb41d62988b70f4503670b234c09dd785d97420dcd9576fb870551. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2318054.